Acceptance and stability (consistency) testing applicable to CR/DR devices;
1. 1mm thick copper substrate: 300 x 300 x 1.0 mm
2. Dynamic stepping wedge ladder, 7-order stepping wedge ladder with different ray absorption coefficients: 0.00, 0.30, 0.65, 1.00, 1.40, 1.85, and 2.3 mm copper thickness dynamic range
3. Low contrast test body, composed of aluminum discs with a diameter of 10 mm, produces contrast ranges of 0.8%, 1.2%, 2.0%, 2.8%, 4.0%, and 5.6% at 70kV
4. Resolution detection (line to line card): Detection spatial resolution 0.6-5.0 lp/mm, 45 ° rotation design
5. The marking area is for signal standardization and uniformity detection
6. Mark the edge area of different sizes of cartridges
